Method of reducing rods or bars.



'-No."729,570. PATEN'TED JUNE 2,.1903.

N JNR. GEORGE.

METHOD OF REDUCING RODS OR BARS.

APPLICATION FILED JULY 5| 1902 no MODEL. I Y

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UNITED STATES PATENT Patented June 2, 1903.

O FICE. f

JEROME R. GEORGE, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO MORGAN CONSTRUCTION COMPANY, :OF WORCESTER,1MASSACHU- SETTS, A CORPORATION OF MASSACHUSETTS.

METHOD OF REDUClNGtRODS OR BARS.

SPECIFICATION forming part of Letters Patent No. 729,570,. dated une 2, 1903.

Original application filed Maroh 10, 1902, Serial No. 97,543. Divided and this application filed July 8, 1902 Serial No.114,774| (No model.)

To 60% whom it may concern:

Be it known that I, JEROME R. GEORGE, a citizen of the United States, and a resident of Worcester, in the county of Worcester and Commonwealth of Massachusetts, have in vented a new and useful Improvement in Methods of Reducing Rods or Bars, of which the following is a specification, accompanied by drawings forming a part of the same, constituting an application which is a division of my pending application, Serial No. 97,543, for

rolling-mills, filed March 10, 1902.

consecutive reduction of a rod or bar by an automatic and continuous movement of the rod or bar through the reducing-passes of a two-high mill; and my invention consists, broadly, in the method of disposing of the rod or bar between the'consecutive passes of the rolls, whereby it is conducted or transferred from one of the passes of the rolls around one of the roll-housings to the next consecutive pass. I

. Referring to the accompanying drawings,

A A denote the housings of a two-'highrolling-mill containing upper and lower rolls B B, provided with a series ofcircumferential grooves or reducing-passes l, 2, V and 3, although their number'may beincreased or diminished. The grooves 1, 2, and 3 gradually decrease in size in the order named, so that a rod or bar consecutively passed through the grooves from 1 to 3 will be reduced in size and correspondingly increased in length. Extending around one of the roll-housings A are curved channels or tracks, according to the number of passes in the rolls, for conducting or transferring the rod as it leaves the rolls into the next consecutive pass, said channels or tracks forming the repeaters C a ndD. The

repeater C is provided with a mouth 0' in pa sition to receive the rod as it leaves the groove or pass 1 in the rolls, and as the rod is pushed into the mouth 0' it is crowded against the corner 0 of the mouth C and against the side wall C thereby bending the rod and imparting a curvature approximating the curved repeater C, which extends around the rollhousing A to the next succeeding groove or pass 2 in the rolls. The repeater D is similar to the repeater C and extends around the housing A with its ends in position to receive the rod from the groove or pass 2 of the vrolls and deliver it to the next consecutive groove or pass 3 in the rolls. The repeater D,'like repeater C, has a mouthD, arranged to receive then-0d as it leaves the groove or pass 2, and it successively bends the rod, giving it a curvature approximatingthe path around the housing A, with the opposite end of the repeater in positionto deliver the rod to the next consecutive groove or pass 3. This being the last pass, in the present instance the rod is conducted through the straight channel or run-out F. The bottom F ofthe run-out F is slightly inclined from its mouth F as shown in Fig. 4, for the purpose of raising the advancing end of the rod as it is delivered from the last reducing-pass of the rolls in order to conduct it over the rod or bar which-may at the time be passing through the curved repeaters C and D. In case the position of the reducing grooves or passes 1, 2, and 3 were reversed and the larger groove were to be placed next the housing A, causing the motion of the rod as it is passed through the mill to be reversed from that I have above described, the inclined bottom of the groove F or run-out, might be omitted, provided the rod operated upon was short enough to cause its rear end to be carried through the rolls before its advancing end reached the next consecutive pass. In other words, if the length of the rod were less than 5 the circumference of the repeaters I place a plate or cover G over that section of the repeaters C and D next the rolls in order to prevent the buckling of the rod or bar in the repeaters, leaving the remaining portion of the loo repeaters open to allow the rod or bar to be raised out of the repeaters in case the rod is delivered from one of the grooves or passes in the rolls faster than it is taken up by the next succeeding groove or pass, thereby producing a loop or overfeed, as indicated by the broken lines H and I, and I provide means for relieving the overfeed by means of an inclined floor J, down which the overfeed is pushed aided by gravity due to the inclination of the floor. By giving a bend to the rod or bar immediately upon its delivery from the grooves or passes of the rolls I obviate the buckling of the bar between the rolls and the curved repeater and I also obviate the friction of the rod or bar against the remaining portion of the repeater.

So far as I am aware it is broadly new to accomplish the continuous reduction of a rod or bar by transferring the advancing end of the rod or bar around one of the roll-housings so the rod or bar delivered from a groove in the rolls will be entered into another groove in the same pair of rolls and its reduction continued, and I do not wish to confine myself to the specific means shown for transferring the end of the rod or bar around the rollhousings. The employment of repeaters C and D is a convenient method and one of many which may be employed for that purpose.

The gist of my invention consists in the idea of accomplishing the consecutive reduction of a rod or bar by the consecutive grooves or passes of a pair of rolls on what is known as a two-high mill by transferring the advancing end of the rodor bar around one of the housings of the rolls. The plate G covers substantially one half of each of the repeaters, leaving the other half open, which allows the loop or overfeed to be lifted out and to flow down the inclined floor J, as represented by the broken lines H and I, the movement of the loops being in the direction of the arrow a, Fig. 1. If, however, the edge Gof the covering-plate be arranged on the broken line K, Fig. 1, the direction of the overfeed or loops of the rod or bar would be changed and would proceed in the direction of the arrow 12, and the loops would flow out in a line at an oblique angle to the axes of the rolls, as shown in Fig. 1. While the edge G of the covering-plate Gcoincides substantially with the diameter of the repeaters, its position may be changed in order to change the movement of the overfeed, thereby directing the loops into a desired position on the floor of the mill.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The herein-described method of consecutively reducing a rod or bar in cross-section which consists in passing the rod or bar between two rolls and conducting or transferring the advancing end of the rod or bar around one of the housings of the rolls and thence between the rolls again and so on until suitably reduced in cross-section, substantially as described.

2. The within-described method of consecutively reducing a rod or bar in cross-section and consisting in passing the rod or bar through one of the grooves or passes in a pair of rolls, having a series of reducing grooves or passes, and conducting or transferring the advancing end of the rod or bar around one of the housings of the rolls to the next consecutive groove or pass and so on successively through the several grooves in the series.

Dated this 2d day of July, 1902.

JEROME R. GEORGE.

Witnesses:

RUFUS B. FOWLER, M. M. SOHUERMANN. 

